The stitching was coming undone on the straps on my Nelson (not manufacturing defect, it was something I did), and I had a hole rubbed in the bottom.
Carradice don't do repairs anymore, but they kindly sent me some fabric when I asked about repairs.
So I bought some strong thread, a thimble, and some leather needles and set to last night.
Oh, my it is difficult getting needles through that leather! Bent smallest needle, managed with the next one. Only did one strap and it is really messy. Took me ages. I kept pushing the needle through from inside of the bag and 'missed' the line - the needle point came out in the wrong place.
Gave up trying to sew the patch on and did as Carradice suggested. They said to glue on with copydex - I used leather-repaid contact adhesive - that seemed to work really well.
I still have one strap to sort out - anyone have any suggestions on how to produce neat stitches in a line?